您可以轻松地将任何想要的变量添加到AJAX调用中。

使用jQuery可以设置如下AJAX操作：

jQuery.post(
    \'your-url-to-admin-ajax.php\',
    {
        action: \'your_called_function\',
        argument: \'year\' or \'category\',
        some_other_var: \'some value\'
    },
    function( response ) {
        if(response) {
        } else {
        }
    }
);

add_action( \'wp_ajax_nopriv_your_called_function\', \'your_called_function\' );
add_action( \'wp_ajax_your_called_function\', \'your_called_function\' );
function your_called_function() {
    $argument = $_POST[\'argument\'];
    $otherVar = $_POST[\'some_other_var\'];
    // now you can do the loop with your argument

    // important to add exit(), or it won\'t work
    exit();
}